<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <!-- 搜索和按钮区域 -->
      <el-row :gutter='20'>
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getGoodsList()'>
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage()">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data='goodsList' border stripe>
          <el-table-column label='#' type='index'></el-table-column>
          <el-table-column prop='goods_name'   label='商品名称'></el-table-column>
          <el-table-column prop='goods_price'  label='商品价格' width='90px'></el-table-column>
          <el-table-column prop='goods_weight' label='商品重量' width='90px'></el-table-column>
          <el-table-column label='创建时间' width='120px'>
              <template slot-scope="scope">
                {{scope.row.add_time | dateFormat}}
              </template>
          </el-table-column>
          <el-table-column  label='操作' width='130px'>
              <template slot-scope="scope">
                <el-button size='mini' type="primary" icon="el-icon-edit"></el-button>
                <el-button size='mini' type="warning" icon="el-icon-delete" @click="removeById(scope.row.goods_id)"></el-button>
              </template>
          </el-table-column>
      </el-table>
      <!-- 分页区 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="this.queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="this.total">
      </el-pagination>
    </el-card>
  </div>
</template>
<script>
export default {
  data () {
    return {
      // 查询参数
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 默认当前显示多少条
        pagesize: 5
      },
      goodsList: [],
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败')
      //   this.$message.success('获取商品列表成功')
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 分页区的处理函数
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 分页区的处理函数
    handleCurrentChange (newpage) {
      this.queryInfo.pagenum = newpage
      this.getGoodsList()
    },
    // 根据id删除商品
    async removeById (id) {
      this.$confirm('此操作将永久删除该数据, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const { data: res } = await this.$http.delete('goods/' + id)
        if (res.meta.status !== 200) return this.$message.error('删除失败')
        this.$message.success('删除成功')
        this.getGoodsList()
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },
    goAddPage () {
      this.$router.push('/goods/add')
    }
  }
}
</script>
<style lang="less" scoped>
</style>
